Finding the Third Proportional to 870,716 and 1,345,422

Step by Step Solution

1. Step 1: Write the proportion equation
   870,716 : 1,345,422 = 1,345,422 : x
2. Step 2: Convert to fraction form
   870,716/1,345,422 = 1,345,422/x
3. Step 3: Cross multiply
   870,716x = 1,345,422 × 1,345,422
4. Step 4: Simplify right side
   870,716x = 1,810,160,358,084
5. Step 5: Solve for x
   x = 1,810,160,358,084/870,716
6. Step 6: Final answer
   x = 2,078,933.15